2.3. Electrical Mobility

Try these first

1. 1.

   What does gravimetric measurement primarily focus on?

   Hint

   Think about the word 'gravimetric' and what it signifies.

2. 2.

   Name one key advantage of using optical methods for PM measurement.

   Hint

   Consider how lasers might be used in measurements.

3. 3.

   What is the primary focus of gravimetric measurement?

   • Measuring particle size through lasers
   • Measuring particle mass
   • Determining particle charge

   Hint

   Think about what gravimetric relates to.

4. 4.

   True or False: Optical diameter and electrical mobility diameter are the same.

   • True
   • False

   Hint

   Consider the definitions of both terms.

5. 5.

   Design a study to analyze PM levels before and after traffic regulations were implemented. Specify which measurement methods to include and justify your choices.

   Hint

   Think about how each method contributes unique data.

6. 6.

   Discuss the potential discrepancies between different particulate measurement methods in terms of environmental impacts. How might these discrepancies influence policy decisions?

   Hint

   Consider how measurement reliability links to policy outcomes.